I don't have P1201 listed in my '99 FSM, but P1281 is "Engine is cold
too long". A brief description of P1281 is "Engine coolant temperature
remains below normal operating temperatures during vehicle travel
(thermostat)"
It sounds like your 180 T-stat might be too cold. Rather than swapping
it out, try blocking off the radiator by placing a piece of cardboard or
something in front of it. If that doesn't work then I guess it's back to
your old temp.
-- Chuck Robbins '99 Dakota Sport www.intense99dak.com> Welll, I guess it had to happen sooner or later, but!!!!!! > > Thought I'd do the key trick before they opened up at work this morning. > > Threw a P1201 or P1281, (old eyes,early morning)no MIL light though. > > DML trouble codes and OBDII don't seem to list these. Anybody got any > clues??????? > > TIA > jc > 00 Sport,cc,4.7,4X4,auto,3.92sg, > Quickd air,Flowmaster,180 tstat,Jet II >
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